I always thought that the first system wasn't worth doing, until I had an injector issue. These trucks are direct injection. They take more maintenance than port injection. Anything that goes into the gas tank, never passes over the valves so the valve train is never getting cleaned. The dealer said that their service cleans the valves but going into the pcv port. They also include a warranty that gives a credit towards fuel injector replacement. Replacing 1 bank if fuel injectors is about $1,200. Sent from my Moto G (5) Plus using Tapatalk

I had looked into getting a crate engine from Frasier engine company. They seem like good quality engines with a great warranty. I didn't end up needing to swap my engine, but if I ever do,I will buy from them. Sent from my Moto G (5) Plus using Tapatalk

I might have an opportunity to pick up a2010 Tahoe w/ the police package. Does anyone know if you can add back the third row on it? Had anyone ever bought an old cop car? Anything else you loose out on with that package? Sent from my Moto G (5) Plus using Tapatalk

I haven't yet. I had half the injectors replaced under powertrain because of a bad Head and noticed a huge difference. I am planning on doing it at 60k. There is a cutoff if when you have to have the first service and then the service interval after that to get the warranty. Sent from my Moto G (5) Plus using Tapatalk

My dealership does the beegee cleaning which I highly suggest. Beegee gives a warranty on the fuel injectors with their product. $180 for the cleaning is day less than the $1200 to replace 4 injectors on these trucks. Also, techron doesn't clean valves because of direct injection, the dealer service does. Sent from my Moto G (5) Plus using Tapatalk

Towed my 3.5k lb trailer over 12k ft passes in Colorado and all through Montana and Idaho with no issues. The gas is lower octane at higher elevations. 85 is considered regular. I paid for mid grade the whole time. Sent from my Moto G (5) Plus using Tapatalk

Did they check for coolant leaks per pip5498? I had taken mine to a local mechanic to get the injectors replaced. He scoped the cylinders before replacing them and found coolant. We both called the dealer and I took it over to them. They agreed and replaced the whole driver's side top end under power train. My mechanic told me that the issue with the injectors is etching from the gas and carbon build up. He said that it is common across all makes that use direct injection. If you Google direct injection issues, consumer reports did an article about all car companies having a lot of issues. It also leads to carbon build up on the valves because the gas never passes over them and the techron cleaners never touch them. It is great for EPA testing, but long term causes issues. Also, if you get the BG fuel service done on a regular basis, it includes$2k towards injector failure. I am going to start doing that going forward since my bumper to bumper is done. Sent from my Moto G (5) Plus using Tapatalk

If it is those codes, I would ask about pip5498 and make sure they are checking for coolant leaks. That is what was causing the error codes on mine. Tech said that it can occur at any point in the warranty period. How is your coolant level? If it is down at all, I would suspect that you have that issue. Sent from my Moto G (5) Plus using Tapatalk

When I looked into doing, I looked up supercharger installation guides. Most of them detail getting to the injectors. Talk to your parts department because there are a lot of extra seals you have to buy. Sent from my Moto G (5) Plus using Tapatalk

I had coolant leaking into the clynders which caused my error code and my#7 injector to go bad. Because the coolant leak caused it, they replaced the driver's side injectors and head under power train warranty. Sent from my Moto G (5) Plus using Tapatalk

Just got word that they are replacing the driver's side head and injectors under warranty. Simi Buick GMC gives top notch service. If you are in the Los Angeles area, check them out. Sent from my Moto G (5) Plus using Tapatalk

Now that the cylinder is clean, they are seeing a lot of oil and coolant in it. I took it over to the dealer and we will see what that say. Thinking I might be part of pip5498. Sent from my Moto G (5) Plus using Tapatalk